Potassium Phosphate, Dibasic, Anhydrous (K2HPO4) is a reagent with a very high buffering capacity. Widely used in molecular biology, biochemistry, and chromatography. Potassium phosphate occurs in several forms: monobasic (KH2PO4), dibasic (K2HPO4), and tribasic (K3PO4). Neutral potassium phosphate buffer solutions may be prepared with a mixture of the monobasic and dibasic forms to varying degrees, depending on the desired pH. Potassium Phosphate buffers are very useful in numerous applications, but with the following limitations: precipitation of Ca2+ and Mg2+, inhibition of restriction enzyme activity, and interference in DNA ligation or bacterial transformation protocols. Has been used to study the effects of freezing and thawing on the stability of proteins sensitive to conformational changes; it was found that KP buffers offered improved pH stability as opposed to NaP buffers. Potassium Phosphate has also been used for the extraction of keratohyalin protein from bovine tissue.
Additional forms available:
Potassium Phosphate, Dibasic, Anhydrous (sc-203210)
Potassium Phosphate, Monobasic (sc-203211)
Dipotassium hydrogen phosphate (sc-491980)
Potassium phosphate tribasic (sc-250766)
Potassium phosphate tribasic monohydrate (sc-250767)
Potassium phosphate dibasic solution (sc-301600)
Potassium Phosphate Monobasic solution (sc-301601)
1. Ugel, A.R. and Idler, W. 1972. J. Cell Biol. 52: 453-464. PMID: 5057980
2. Pikal-Cleland, K.A., et al. 2000. Arch. Biochem. Biophys. 384: 398-406. PMID: 11368330
3. Sambrook, et al. 1989. Rnai: Molecular Cloning: A Laboratory Manual. 2nd ed. Cold Spring Harbor Laboratory Press. New York. Cold Spring Harbor. Vol. 3.
See how others have used Potassium Phosphate, Dibasic, Anhydrous. Click on the entry to view the PubMed entry .
PMID: # 6371541 Morace, G. et al. 1984. Mycopathologia. 84: 81-85.
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